Thermal characteristics of Boger-micropolar tri-hybrid nanofluid magnetized squeezing flow within concentric parallel discs

The flow of non-Newtonian Boger-micropolar fluid combined with tri-hybrid nanoparticles in the base fluid ethylene glycol under the influence of magnetic field is analysed in this discussion. The three-dimensional squeezing flow through two concentric parallel discs is considered. The interaction of thermal radiation with various thermophysical properties energies the flow phenomena significantly. The enhanced thermal characteristic is exhibited due to the implementation of viscosity, electrical and thermal conductivity based on the spherical, cylindrical, and platelet shape nanoparticles. The standard transformation rules are employed for the governing equations in dimensional forms to transform into non-dimensional and ordinary set of differential equations. The resulting partial differential equations are solved numerically by employing Runge–Kutta fourth-order technique, followed by shooting. Key findings show that the combined effects of nanoparticle concentration, micropolar parameters, and magnetic field intensity have a considerable impact on the hybrid nanofluid's effective assets. The effective features of various factors involved in the proposed model are deployed graphically, and the physical behaviour is illustrated briefly. However, the squeezing flow within concentric discs allows for the efficient heat management devices in a variety of industrial and biomedical areas. The primary findings indicate that fluid velocity is significantly affected by an increase in the micropolar parameter, which signifies the non-Newtonian attributes of the material. Furthermore, fluid transportation is hampered in both permeable and impermeable surface conditions by the resistance caused by the permeability of the porous matrix.